Crinoid fossils are most commonly found in limestone ... while others had long, flexible stems, allowing them to sway and filter food from higher in the water column. The crown’s morphology ...

Fossils formed when an animal's shell or other hard structure ... extend out and filter food particles from the water. Multiple cross-sections of crinoid stems, also known as "Indian beads," are ...

“My reaction was surprise.” An examination of the cleaned-up fossil revealed that it was a regurgitated meal consisting of the two crinoids, a relative of the modern-day sea starfish. Experts ...